PIC to LCD

[Guest]

Sir, actually at the include coding have stdlib.h, math.h and flex_lcd.c
I dont know why it does not appear when i posted at this forum

#include <16f877a.h>
#device adc=10;
#include
#include
#use delay (clock = 4000000)
#fuses HS, noprotect, nowdt, nolvp
#byte PORTA = 5
#byte PORTB = 6
#define use_portb_lcd TRUE
#include

void main()
{
double valuein, valueout, result;


set_tris_b(0); //set port b as output
setup_port_a(ALL_ANALOG); //port a analog input
setup_adc(ADC_CLOCK_INTERNAL);

portb=0x00;
delay_ms(3000);
portb=0;

lcd_init();

do

{

set_adc_channel(1);
delay_us(20);
valuein = read_adc(1); //read from port AN1
valueout = valuein*0.035;
result=48+valueout;


lcd_putc("\f The value is\n");
lcd_putc( 48+valueout );

delay_ms(2000);

while(1);

}

}

[PCM programmer]

The #include files are missing because when you posted your code,
you didn't disable HTML. There's a tickbox below the posting window
to do this. It looks like this:

[pijang]

what do u mean by casting?
Is it i have to change the double function to int8 at the top coding?

I have read some notes telling that we must limit the input value.
For example if my input is until 4 or 5 decimal places, i have to cut it down to 2 or 3 depends on my PIC. Is it right?
Then can i know how to limit the input value until 1 or 2 decimal places
For example let say 2.3569 become 2.35..

Then i have to set the program become like this
lcd_putc(48+D1&"."&48+D2&48+D3);

D1=first digit which is 2
D2=second digit after "." which is 3
D3=third digit which is 5

How do i want to set this coding if this assumption is correct?

[PCM programmer]

http://www.ccsinfo.com/forum/viewtopic.php?t=29157&highlight=printf+lcdputc

[pijang]

oo. Now i understand...
So i must use printf command for my analog input..
So how about the rest of my question..

can i limit the value from my input until 2 decimal places?
and what i should declare at the top of this coding?

Is it just using the double function and change lcd_putc to prinf
or i have to use int8 instead of double function?

for example
int8 valuein, valueout, result;

[PCM programmer]

See this example program that I posted earlier in the thread.
It shows exactly how to do it.
http://www.ccsinfo.com/forum/viewtopic.php?t=28842&start=7
Also, you need to get a book on the C language or use an
online reference.